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Re: [Qemu-discuss] kvm instance hangs at boot while starting with iSCSI

From: Mike Lovell
Subject: Re: [Qemu-discuss] kvm instance hangs at boot while starting with iSCSI
Date: Wed, 13 Jun 2012 14:27:30 -0600
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120430 Thunderbird/12.0.1

On 06/13/2012 01:56 PM, Charles Chou wrote:
    After reading the source some more I think iscsi is a top level option so you may want to try:

-iscsi initiator-name=some_name -drive file=iscsi://[xxxx:xxxx:xxxx::3]:3260/iqn.2010-08.xx.xxx.xxxxxxx.pool10-images/10,....

    Also I am curious as to whether it performs better than using virtio on a block device that is created by the open-iscsi initiator.

this is going off the original thread topic for a moment. i wouldn't expect the performance to be any better. my interest in using the iscsi qemu block backend is that it can be done without modifying the host. you don't have to have escalated permissions to connect the host kernel to the iscsi target or figure out which block device matches up to the iscsi target and lun or have permissions to read/write from the kernel block device. so it adds some separation between the guest and the host kernel. (though i brought this up with the ovirt guys last fall and got lots of 'wtf' looks)


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